 /*******************************************************************************
  * Copyright (c) 2000, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.update.internal.configurator;

 import org.osgi.framework.Version;

 public class VersionedIdentifier {
     private String identifier;
     private Version version;

     public VersionedIdentifier(String id, String version) {
         this.identifier = id;
         this.version = Version.parseVersion(version);
     }

     public Version getVersion() {
         return version;
     }

     public String getIdentifier() {
         return identifier;
     }

     private boolean equalIdentifiers(VersionedIdentifier id) {
         if (id == null)
             return identifier == null;
         return id.identifier.equals(identifier);
     }

     /* (non-Javadoc)
      * @see java.lang.Object#equals(java.lang.Object)
      */
     public boolean equals(Object obj) {
         if (this == obj)
             return true;
         if (!(obj instanceof VersionedIdentifier))
             return false;

         VersionedIdentifier other = (VersionedIdentifier) obj;
         if (!equalIdentifiers(other))
             return false;
         return version.equals(other.getVersion());
     }

     /* (non-Javadoc)
      * @see java.lang.Object#hashCode()
      */
     public int hashCode() {
         return (identifier + "_" + getVersion()).hashCode(); //$NON-NLS-1$
 }

     /* (non-Javadoc)
      * @see java.lang.Object#toString()
      */
     public String toString() {
         return identifier + "_" + getVersion(); //$NON-NLS-1$
 }
 }
